Device for measuring looseness of tower crane nut

Abstract

The utility model relates to the technical field of nut looseness, in particular to a device for measuring nut looseness of a tower crane, which is characterized in that an early warning nut is electrically connected with an early warning switch and a wireless transmission module, a power supply module is arranged in the early warning nut, a movable plate is arranged in a positioning ring, a limiting plate is arranged on the side surface of the movable plate, and a limiting nut is screwed on the surface of a positioning bolt; the device has the beneficial effects that when the device for measuring the looseness of the tower crane nut is used, firstly, the tower crane structure is fixedly mounted by matching the positioning bolt with the limiting nut, then the early warning nut can be screwed on the positioning bolt, and when the limiting nut is loosened, an early warning switch at the bottom of the early warning nut can be touched, so that the tower crane structure is prevented from being loosened. And then the wireless transmission module can transmit early warning information to a monitoring platform, so that a worker can check the early warning information in time, and then the limiting nut can be fastened.

Description

Technical Field

[0001] The utility model relates to the field of nut loosening, in particular to a device for measuring the loosening of tower crane nuts. Background Art

[0002] Tower cranes, also known as tower cranes, originated in Western Europe. These are rotating cranes with a boom mounted on top of a tall tower. They offer a large working area and are primarily used for vertical and horizontal material transportation and component installation in building construction. They consist of a metal structure (including the tower, boom, and base), a working mechanism, and an electrical system.

[0003] In the prior art, when a tower crane is installed, it is fixed by multiple sets of positioning bolts, and fixing by bolts also facilitates subsequent disassembly.

[0004] However, after the tower crane is installed, some important joints of the tower crane may shake slightly due to the influence of wind on the tower crane, which may cause the nuts on the positioning bolts to loosen over time. The loose nuts increase the safety risks of the tower crane and are difficult to detect after the nuts are loose. Therefore, the utility model proposes a device for measuring the looseness of tower crane nuts to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of the utility model is to provide a device for measuring the looseness of tower crane nuts, so as to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the utility model provides the following technical solution: a device for measuring the looseness of a tower crane nut, the device for measuring the looseness of a tower crane nut comprising: an early warning nut, the early warning nut being electrically connected to an early warning switch and a wireless transmission module, and a power supply module being provided in the early warning nut;

[0007] A positioning ring, a movable plate is provided inside the positioning ring, and a limit plate is provided on the side of the movable plate;

[0008] Positioning bolt, the surface of the positioning bolt is threaded with a limiting nut.

[0009] Preferably, the positioning bolt can be used to fix the tower crane structure, and a positioning slot is provided on the end face of the positioning bolt.

[0010] Preferably, the power supply module can provide power to the early warning switch and the wireless transmission module, the early warning nut can be screwed onto the positioning bolt, and the power supply module is an ordinary rechargeable battery.

[0011] Preferably, a thread groove is provided on the surface of the warning nut, and the positioning ring can be screwed into the thread groove. A placement groove is provided on the surface of the positioning ring, and there are two groups of placement grooves, which are symmetrically distributed about the positioning ring.

[0012] Preferably, a moving rod is provided on the end surface of the placement groove, a limiting spring is screwed on the surface of the moving rod, and a baffle is provided on the surface of the moving rod, and the baffle is an annular plate structure.

[0013] Preferably, the movable plate is sleeved on the movable rod, and the movable plate can be displaced along the movable rod. One end of the limit spring is fixedly connected to the side of the baffle, and the other end of the limit spring is fixedly connected to the side of the movable plate. The limit plate can be inserted into the positioning slot, and the limit plate has a square plate structure.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The device for measuring the looseness of tower crane nuts proposed by the utility model first uses the positioning bolts in conjunction with the limit nuts to fix and install the tower crane structure, and then the warning nut can be screwed on the positioning bolts. When the limit nut is loose, it will touch the warning switch at the bottom of the warning nut, and then the wireless transmission module can transmit the warning information to the monitoring platform for the staff to check in time and then tighten the limit nut. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the device of the utility model;

[0017] Figure 2 This is a schematic diagram of the warning nut and positioning ring of the utility model structure;

[0018] Figure 3 This is a schematic diagram of the structure of the positioning ring of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the warning nut of the utility model;

[0020] Figure 5 This is a structural control flow chart of the utility model.

[0021] In the figure: 1. Warning nut; 2. Warning switch; 3. Wireless transmission module; 4. Positioning ring; 5. Moving plate; 6. Limiting plate; 7. Positioning bolt; 8. Limiting nut; 9. Tower crane structure; 10. Positioning slot; 11. Threaded groove; 12. Placement slot; 13. Moving rod; 14. Limiting spring; 15. Baffle; 16. Power supply module. DETAILED DESCRIPTION

[0022] In order to clearly and completely describe the purpose and technical solution of the present invention and make its advantages more clearly understood, the following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention and are not intended to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Example 1: Please refer to Figure 1-Figure 5 The utility model provides a technical solution: a device for measuring the looseness of a tower crane nut, the device comprising: an early warning nut 1, the early warning nut 1 being electrically connected to an early warning switch 2 and a wireless transmission module 3, and a power supply module 16 being provided in the early warning nut 1;

[0024] A positioning ring 4 is provided with a movable plate 5 inside the positioning ring 4, and a limiting plate 6 is provided on the side of the movable plate 5;

[0025] Positioning bolt 7, the surface of which is threaded with a limiting nut 8;

[0026] First, use the positioning bolt 7 in conjunction with the limit nut 8 to fix the tower crane structure 9, and then the warning nut 1 can be screwed onto the positioning bolt 7. When the limit nut 8 becomes loose, it will touch the warning switch 2 at the bottom of the warning nut 1. Then the wireless transmission module 3 can transmit the warning information to the monitoring platform for the staff to check in time, and then the limit nut 8 can be tightened.

[0027] Example 2: On the basis of Example 1, in order to facilitate the early warning of the limit nut 8, an early warning nut 1 is provided. The power supply module 16 can increase the power of the early warning switch 2 and the wireless transmission module 3. The early warning nut 1 can be screwed onto the positioning bolt 7. The power supply module 16 is an ordinary rechargeable battery. The positioning bolt 7 can be fixedly connected to the tower crane structure 9. The end surface of the positioning bolt 7 is provided with a positioning slot 10.

[0028] During use, when the limit nut 8 becomes loose, it will touch the early warning switch 2, and the early warning switch 2 can transmit the early warning information to the wireless transmission module 3, and then transmit the early warning signal to the monitoring device through the wireless transmission module 3 for the convenience of staff to view. The setting of the power supply module 16 is convenient for providing power to the early warning switch 2 and the wireless transmission module 3. The monitoring device and the early warning nut 1 are paired and networked, and a communication protocol is established. The monitoring device can receive the early warning information of the early warning nut 1. The communication distance between the monitoring device and the early warning nut 1 can reach 200 meters. During installation, there should be no obstruction between the two to avoid affecting the signal stability. The early warning nut 1 is fully sealed as a whole, can work outdoors for a long time, can provide underwater early warning, and the sealing performance reaches IPX7.

[0029] Embodiment 3: On the basis of embodiment 2, a limit plate 6 is provided to prevent the warning nut 1 from loosening. A threaded groove 11 is provided on the surface of the warning nut 1, and the positioning ring 4 can be screwed into the threaded groove 11. A placement groove 12 is provided on the surface of the positioning ring 4. There are two groups of placement grooves 12, and the two groups of placement grooves 12 are symmetrically distributed about the positioning ring 4. A moving rod 13 is provided on the end face of the placement groove 12. A limiting spring 14 is screwed on the surface of the moving rod 13. A baffle 15 is provided on the surface of the moving rod 13. The baffle 15 has an annular plate structure. The moving plate 5 is sleeved on the moving rod 13, and the moving plate 5 can be displaced along the moving rod 13. One end of the limit spring 14 is fixedly connected to the side of the baffle 15, and the other end of the limit spring 14 is fixedly connected to the side of the moving plate 5. The limit plate 6 can be inserted into the positioning slot 10, and the limit plate 6 has a square plate structure.

[0030] During use, when the warning nut 1 needs to be installed, first pull the movable plate 5 to facilitate the screwing of the limit nut 8 on the positioning bolt 7. When the warning nut 1 is screwed to the appropriate position, the movable plate 5 can be loosened, so that the movable plate 5 can be reset by the elastic force of the limit spring 14, so that one end of the limit plate 6 can be inserted into the positioning slot 10. The loosening problem of the warning nut 1 can be avoided by the cooperation between the limit plate 6 and the positioning slot 10. The warning nut 1 can be conveniently disassembled and separated from the positioning ring 4 by screwing the positioning ring 4 from the thread groove 11.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for measuring the looseness of tower crane nuts, characterized by: The device for measuring the looseness of a tower crane nut comprises: an early warning nut (1), the early warning nut (1) being electrically connected to an early warning switch (2) and a wireless transmission module (3), and a power supply module (16) being provided in the early warning nut (1); A positioning ring (4), a movable plate (5) is provided inside the positioning ring (4), and a limiting plate (6) is provided on the side of the movable plate (5); A positioning bolt (7) is threadedly connected to a limiting nut (8) on the surface of the positioning bolt (7).

2. The device for measuring the looseness of tower crane nuts according to claim 1, characterized in that: The positioning bolt (7) can be used to securely connect the tower crane structure (9), and a positioning slot (10) is provided on the end surface of the positioning bolt (7).

3. The device for measuring the looseness of tower crane nuts according to claim 1, characterized in that: The power supply module (16) can increase the power of the early warning switch (2) and the wireless transmission module (3); the early warning nut (1) can be screwed onto the positioning bolt (7); and the power supply module (16) is a common rechargeable battery.

4. The device for measuring the looseness of tower crane nuts according to claim 1, characterized in that: The surface of the warning nut (1) is provided with a thread groove (11), the positioning ring (4) can be screwed into the thread groove (11), the surface of the positioning ring (4) is provided with a placement groove (12), and the placement grooves (12) are provided in two groups, and the two groups of placement grooves (12) are symmetrically distributed about the positioning ring (4).

5. The device for measuring the looseness of tower crane nuts according to claim 4, characterized in that: The end surface of the placement groove (12) is provided with a moving rod (13), the surface of the moving rod (13) is screwed with a limiting spring (14), and the surface of the moving rod (13) is provided with a baffle (15), which is an annular plate structure.

6. The device for measuring the looseness of tower crane nuts according to claim 1, characterized in that: The movable plate (5) is sleeved on the movable rod (13), and the movable plate (5) can be displaced along the movable rod (13). One end of the limit spring (14) is fixedly connected to the side of the baffle (15), and the other end of the limit spring (14) is fixedly connected to the side of the movable plate (5). The limit plate (6) can be inserted into the positioning slot (10), and the limit plate (6) is a square plate structure.

Images